function $(ref)
{
    return document.getElementById(ref);
}

window.onload = function ()
{
    var col1 = $('div-left-townmeeting');
    var col2 = $('div-posts-townmeeting');
    var col3 = $('div-right-townmeeting');
    var h = Math.max(Math.max(col1.clientHeight, 
                    col2.clientHeight), 
                    col3.clientHeight);
    col1.style.height = h.toString()+"px";
    col2.style.height = h.toString()+"px";
    col3.style.height = h.toString()+"px";
    // alert(h);
}
